Hi, I've been trying to obtain some insight into UBC (among other) related
performance in Digital UNIX, specifically the UBC hit rate. It would appear
from the numerous discussons in osf managers archives that the "VmUBC" is by far
the most useful in this realm.
The questions I have is as follows:
VmUBC shows hits and misses for the UFS/UBC as obtained from the namelist symbol
"ufs_getapage_stats". I believe this to be the "BSD buffer cache" information,
not the "real" unified buffer cache statistics.
1) Is anyone aware of a symbol which would provide the unified buffer cache
hit/miss/look information for AdvFS (UBC is really for all filesystems)?
2) Do you know of any DNLC (directory name lookup cache) stats
that can be obtained via a namelist?
3) How can I obtain other kernel symbol names of potentially useful stats?
(is there is a list somewhere which gives vmunix symbol names
with a description?)
Any help would be greatly appreciated.
Geoffrey Kimball
Received on Fri Jul 19 1996 - 23:22:34 NZST